I don’t know if its a problem to post this here.
Tim Berglund is creating a plugin for liquibase to use Groovy migrations instead of xml.
It is not like database-migration that needs a grails project.
It can be executed in gradle (such as Maven). Maven is planned.
It is still in construction, all basic commands work. Groovy change is being worked on.
So for all those people who are interested in groovy migrations take a look at
Erwin van Brandwijk